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Diffstat (limited to 'Documentation/media/uapi/v4l/vidioc-querycap.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/vidioc-querycap.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-querycap.rst b/Documentation/media/uapi/v4l/vidioc-querycap.rst index 9494af96bae7..7553b44692b4 100644 --- a/Documentation/media/uapi/v4l/vidioc-querycap.rst +++ b/Documentation/media/uapi/v4l/vidioc-querycap.rst @@ -92,12 +92,13 @@ specification the ioctl returns an ``EINVAL`` error code. stack from a newer kernel. The version number is formatted using the ``KERNEL_VERSION()`` - macro: + macro. For example if the media stack corresponds to the V4L2 + version shipped with Kernel 4.14, it would be equivalent to: * - :cspan:`2` ``#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))`` - ``__u32 version = KERNEL_VERSION(0, 8, 1);`` + ``__u32 version = KERNEL_VERSION(4, 14, 0);`` ``printf ("Version: %u.%u.%u\\n",`` |